By Shashank Nayar and Ambar Warrick (Reuters) -London’s FTSE 100 rebounded on Tuesday from a one-month low hit a day earlier, supported by major bank stocks as expectations of tighter monetary policy drove up bond yields. The blue-chip FTSE 100 index gained 1.0%, with lenders HSBC and Lloyds Banking Group among the top boosts. Heavyweight oil stocks also rose as concerns of a military conflict in Ukraine and risks in the Middle East buoyed crude prices with the prospect of supply disruptions. [O/R] The domestically-focussed midcap index rose 0.9% after closing at a near 10-month low on Monday….